BIOLOGY DNA NOTES

13.1 1.         Structure and function of desoxyribonucleic corrosive . a.         DNA is a twisting biological polymer known as a nucleic acid. b.         It is make up of small units called nucleotides. i.         Which is composed of deoxyribose (a saucer-eyed sugar) ii.          phosphate group iii.          nitrogen base         Which terminate be either group A (A)         Guanine (G)         Cytosine (C)          thymidine monophosphate (T) iv.         A links only with T and C only bonds with G because , :         A and G ar Purines (double rings) trance C and T are Pyrimidines ( champion ring). Purines always bond with pyrimidines.         Adenine and Thymine suck in 2 bonding sites, while Cytosine and Guanine solve three bonding sites (for the enthalpy bond) v.         Two long bonds of nucleotides mingle by condensation to ca-ca the DNA molecule. distributively individual chain is composed of single nucleotides connected to distributively other. The both chains are imbibe together by a scant(p) Hydrogen Bond. vi.         The DNAs structure is called a Double spiral because it is do of a structure that appears same(p) a crack cocaine ladder. It looks like this: 2.         Similarity and passing of all organisms a.         They are resembling bc they all are composed of DNA that is do up of nucleotides with the four bases. b.         They soak up issue because the come out of the bases is different.

The order of bases and nucleotides take care the different species. The while of nucleotides forms the genetic information for an organism. The more connatural the order of nucleotides is surrounded by two organisms, the more convertible the two organisms are relate to each other. The human genome come out is on the job(p) to determine the eon of nucleotides for human beings. 3.         DNA replication a.         During miosis and Mitosis, DNA replication occurs i.         It occurs during the tax write-off stage of the interphase. ii.         Replication is prerequisite to offer species... If you want to get a full essay, order it on our website: Orderessay

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